Brushless motor controller is how to control

brushless motor controller is how to control? One, the armature resistance speed: different types of dc motor controller can be this way. When the load reaches a certain standard, due to resistance of the dc motor controller, the armature loop total resistance increases, thus reduce speed appears. Second, change the field current control of motor speed: when the armature voltage constant, choose field current to achieve speed control. Three, change the armature voltage control: change the voltage there are two ways: one is using the change voltage; The second is to use the thyristor inverter power supply control system.